HIGHLAND -- Town of Lloyd Police have interviewed at least 15 people who witnessed a Plattekill woman driving her 2005 BMW south on the wrong side of Route 9W early Saturday.

But the reason she was driving on the wrong side of the road -- at high speed, according to police -- remains a mystery. The results of toxicology exams of the woman will not be available for several weeks.

The woman has been identified as Tracey Krug, 51, of Plattekill.

She was driving a 2005 BMW and ended up striking head-on a 1995 BMW traveling north on Route 9W not far from the mid-Hudson Bridge. It was at 6:50 a.m.

The second car was driven by Wayne Donaldson, 50, of Highland.

He was pronounced dead at the scene by the Ulster County Medical Examiner.

Krug was transported to St Francis Hospital, where she was later pronounced dead.